What do you mean hot and waterproof?

It refers to a waterproof method of roof waterproofing.

In general, it is best to re-do the waterproof layer of the whole roof (slag backfilling), use cement mortar to find the slope, and then use SBS (asphalt paper) as the surface layer. As long as the construction is carried out according to the specifications, it will be no problem in about ten years.

Construction method: Construction tools: gasoline blowtorch (3.5 liters), pulley, brush, press, scissors, tape measure, broom, etc. Grass-roots treatment: the grass-roots layer is a cement mortar leveling layer, which must be solid and flat, and there must be no looseness, bulging, rough and unequal surface, otherwise it must be treated. The base must be dry, and the moisture content should be within 9%. During the test, the coiled material is laid on the surface of the base, and after 3-5 hours, if there is basically no water drop on the lower surface, the construction can be started. Before construction, carefully clean up the cement mortar residue, dust and sundries left on the surface of the base, and then coat the bottom oil, which requires uniform coating and drying for more than 8 hours at a time (depending on the temperature, it is advisable not to stick feet). Generally, the dosage per square meter is 0.2. Treatment of complex parts: the corner of yin and yang should be made into a figure of eight, and the corner parts such as parapet, pipe root, chimney, exhaust hole, water outlet and expansion joint should be made into additional layers. , generally 30cm wide, overlapping 6-8 cm. Coil paving: before paving the coil, measure the waterproof area to be constructed, and then use the material reasonably according to the size of the material, starting from the lowest point. First of all, put the coil in the correct position, leaving 8cm on the long side and 10cm on the short side. Then ignite the blowtorch, aim at the bottom of the coil and the base surface, and heat evenly (the blowtorch nozzle is about 30cm away from the coil surface). Immediately after the surface of the coil melts, roll the coil forward and compact and flatten the coil. The summer-planting part should be extruded with molten asphalt. Don't get involved in air and foreign matter when rolling to prevent deflection, bulging and wrinkling. Finally, seal the joint evenly and carefully with a blowtorch and a press to prevent the edge from warping. Labor protection and safety protection: during transportation and construction, the coiled material should be protected from being scratched and punctured by hard objects, and it is forbidden to trample it at will after construction, and the use protection should be done well. Wear gloves during construction to avoid burns and scalds, and store flammable items such as gasoline cans and coiled materials separately, away from fire sources, to prevent fire and industrial accidents.